It's certainly possible. If a PVC valve gets stuck, it'll sometimes show up in the oil.
Have the PVC valve checked. Also, pressure check the cooling system to be sure. If these to check out, then observe the condition of the oil again after a couple hundred miles. And if you experience ANY over heating, shut it down immediately and take it to a shop.
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Monday, November 29th, 2010 AT 1:05 AM